20922804

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{409}}^1$

素因数の和:462

約数の個数: 108

約数和(自身を含む): 63800100

約数和(自身を除く): 42877296

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 29, 36, 42, 49, 58, 63, 84, 87, 98, 116, 126, 147, 174, 196, 203, 252, 261, 294, 348, 406, 409, 441, 522, 588, 609, 812, 818, 882, 1044, 1218, 1227, 1421, 1636, 1764, 1827, 2436, 2454, 2842, 2863, 3654, 3681, 4263, 4908, 5684, 5726, 7308, 7362, 8526, 8589, 11452, 11861, 12789, 14724, 17052, 17178, 20041, 23722, 25578, 25767, 34356, 35583, 40082, 47444, 51156, 51534, 60123, 71166, 80164, 83027, 103068, 106749, 120246, 142332, 166054, 180369, 213498, 240492, 249081, 332108, 360738, 426996, 498162, 581189, 721476, 747243, 996324, 1162378, 1494486, 1743567, 2324756, 2988972, 3487134, 5230701, 6974268, 10461402, 20922804]

約数ペア:

[(1, 20922804), (2, 10461402), (3, 6974268), (4, 5230701), (6, 3487134), (7, 2988972), (9, 2324756), (12, 1743567), (14, 1494486), (18, 1162378), (21, 996324), (28, 747243), (29, 721476), (36, 581189), (42, 498162), (49, 426996), (58, 360738), (63, 332108), (84, 249081), (87, 240492), (98, 213498), (116, 180369), (126, 166054), (147, 142332), (174, 120246), (196, 106749), (203, 103068), (252, 83027), (261, 80164), (294, 71166), (348, 60123), (406, 51534), (409, 51156), (441, 47444), (522, 40082), (588, 35583), (609, 34356), (812, 25767), (818, 25578), (882, 23722), (1044, 20041), (1218, 17178), (1227, 17052), (1421, 14724), (1636, 12789), (1764, 11861), (1827, 11452), (2436, 8589), (2454, 8526), (2842, 7362), (2863, 7308), (3654, 5726), (3681, 5684), (4263, 4908)]